Chemical Tank

ABSTRACT

The present invention relates to a chemical tank comprising a tank body and a tank mouth. The tank body includes a tank body part, a tank top and a tank bottom. The tank mouth arranged on the tank top includes a mouth body and a joint part. A stamping fastening structure for connecting the joint part and the tank body is arranged therebetween. Further, a positioning structure is disposed at the junction of the joint part and the tank body. A pressure-proof protective structure located in the joint part and the tank top is provided on the periphery of the stamping fastening structure. Herein, the positioning structure acts to enhance the positioning effect. Besides, the pressure-proof protective structure plays a role of pressure-proof protection. The tank mouth and the tank top are produced by stamping fastening, thus achieving high production efficiency, low cost and high strength.

FIELD OF THE INVENTION

The present invention relates to a metal container, and specifically to a chemical tank.

BACKGROUND OF THE INVENTION

In the conventional chemical tank, the fastening connection between its tank mouth and tank body is achieved by soldering or stamping. Herein, the soldering is low in efficiency and high in cost. Besides, it is easy to generate some welding slag during a production process, in which case the chemical tank looks unbeautiful. Furthermore, the fastening strength of stamping in the conventional chemical tank is relatively low. When screwing a tank cap, the tank mouth may thus displace and even fall off easily. A pressure-proof protection is also absent at the joint part between the tank mouth and the tank body of the conventional chemical tank. In this case, it is easy for the joint part and the tank body to deform and fall off when the tank cap is pressed down.

SUMMARY OF THE INVENTION

The objective of the present invention is to provide a chemical tank, wherein the connection strength between a tank mouth and a tank body of the chemical tank is high, and the tank body is low in installation cost and high in production efficiency.

In order to solve the above-mentioned technical problems, a chemical tank is provided in the present invention, wherein comprising a tank body and a tank mouth; the tank body is comprised of a tank body part, a tank top and a tank bottom, and the tank mouth is arranged on the surface of the tank top; the tank mouth includes a mouth body and a joint part, wherein the joint part is a laminar structure that is arranged on the periphery of the bottom of the mouth body and further perpendicular to the mouth body; a stamping fastening structure for connecting the joint part and the tank body is arranged therebetween; a positioning structure is disposed at the junction of the joint part and the tank body. Moreover, a pressure-proof protective structure located in the joint part and the tank top is provided on the periphery of the stamping fastening structure.

Advantageously, leakage-proof glue is provided between the joint part and the tank body.

Advantageously, the joint part is a circular laminar structure.

Advantageously, the positioning structure comprises a riveting hole and an embossing structure extending downwards.

Advantageously, the pressure-proof protective structure is a circular laminar structure, of which the diameter is larger than that of a joint section of the tank top.

When implementing the present invention, the following advantageous effects can be achieved: since the joint part and the tank body are connected with each other by the stamping fastening structure, high production efficiency and low cost are achieved, and there is no welding slag during the production process as well; due to the high strength of the stamping fastening structure, the joint part and the tank body can be connected together tightly after a stamping process. Meanwhile, the positioning structure is located at the junction of the joint part and the tank body, whereby it can act upon the tank mouth to enhance the positioning effect when the tank cap is screwed, so that the tank mouth will not rotate with the tank cap. Besides, the pressure-proof protective structure arranged on the joint part plays a role of pressure-proof protection. In this way, the tank mouth will not deform or fall off when the tank cap is pressed down.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described with reference to accompanying drawings and embodiments in the following. In the figures:

FIG. 1 is a structural diagram for a chemical tank of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIG. 1, it is a structural diagram for a chemical tank of the present invention. The chemical tank comprises a tank mouth 1 and a tank body 2, wherein the latter is formed by a combination of a tank body part 21, a tank top 22 and a tank bottom (not shown in the FIGURE) that are all made of metal sheet. The tank mouth 1 is mounted on the tank top 22, and it is comprised of a mouth body 11 and a joint part 12. The mouth body 11 is arranged with a spiral structure 111 on its outside surface, and the joint part extends vertically from the bottom of the mouth body 11. Besides, the mouth body 11 is made of metallic material.

The joint part 12 is similar to a laminar structure which is made of the same material as that of the mouth body 11. The joint part 12 is connected with the tank body 2 by a stamping fastening structure 3. Moreover, leakage-proof glue is provided between the joint part 12 and the tank body 2. During production, the tank mouth 1 is place on the tank top, and the stamping fastening structure 3 is produced by stamping the joint part 12 and the tank top 22 simultaneously through a stamping machine. The joint part 12 can be a circular structure and any other structures.

A positioning structure 4 is arranged at the junction of the joint part 12 and the tank top 22. The positioning structure 4 is a riveting and embossing structure which comprises a riveting hole 41 and an embossing structure 42, wherein the embossing structure extends downwards.

A pressure-proof protective structure 121 is provided on the periphery of the joint part 12. It is a circular laminar structure of which the diameter is larger than that of a joint section of the tank top 22.

It should be understood that any improvement or modification can be carried out to the above-mentioned description for those skills in the art, while all these improvements and modifications should be included within the scope of protection of the appended claims of the present invention.

Embodiments of the present invention have been described with reference to accompanying drawings above. However, the present invention should not be limited by the above-mentioned implementations. Instead, all the implementations mentioned above are only for illustration while not for limitation. In light of the present invention, many forms can be made by those skills in the art without departing the subject matter of the present invention and the scope of appended claims. All these forms should be within the protection of the present invention. 

1. A chemical tank, comprising a tank body (2) and a tank mouth (1); the tank body (2) is comprised of a tank body part (21), a tank top (22) and a tank bottom, and the tank mouth (1) is arranged on the surface of the tank top (22); the tank mouth (1) includes a mouth body (11) and a joint part (12), wherein the joint part (12) is a laminar structure that is arranged on the periphery of the bottom of the mouth body (11) and further perpendicular to the mouth body (11); a stamping fastening structure (3) for connecting the joint part (12) and the tank body (2) is arranged therebetween; a positioning structure (4) is disposed at the junction of the joint part (12) and the tank body (2); a pressure-proof protective structure (121) located in the joint part (12) and the tank top (22) is also provided on the periphery of the stamping fastening structure (121).
 2. The chemical tank of claim 1, wherein leakage-proof glue is provided between the joint part and the tank body.
 3. The chemical tank of claim 1, wherein the joint part (12) is a circular laminar structure.
 4. The chemical tank of claim 1, wherein the positioning structure (4) comprises a riveting hole (41) and an embossing structure (42).
 5. The chemical tank of claim 1, the pressure-proof protective structure (121) is a circular laminar structure, of which the diameter is larger than that of a joint section of the tank top (22). 